5kgs of 40' length rod
.512 kg/meter
Density of steel is taken as 7850 kg/cum. Hence unit weight of 50mm dia steel rope will be approximately 15.42 kg/m.
=7.7*8
50nb ms pipe unit weight
unit weight of 60mm dia hallow ms pipe
The formula for calculating weight of a solid shaft is dia x dia x length x 7.8 x 1000000. This formula is the most commonly used.
8mm dia : 0.395 kg/m 10mm dia : 0.617 kg/m 12mm dia : 0.888 kg/m 16mm dia : 1.579 kg/m 20mm dia : 2.467 kg/m 25mm dia : 3.855 kg/m These are standard unit weights based on the density of steel @ 7850 kg/m3
Rolling margin is percentage of diviation in Sectional weight of Reinforcement steel allowable as per IS codes.Reinforcement steel is extruded from a mould which is made for a particular size e.g 8mm Dia.When the mould is brand new,the sectional weight of 8mm steel extruded through mould would exact as per IS standard of lower than that.i.e. 0.395Kg per Metre or lessor.Mould gets little bigger after certain period of time or after certain quantity of production is taken from a particular mould.Now same 8mm dia bars extruded from the same mould will have more weight per Metre say 0.400Kg per Metre insted of 0.395 as per IS. That is more mass per Metre/Length is required for same length.This diviation in weight is defined in IS codes for different dia which is as under :- 8mm to 10mm +_ 7% 12mm to 16mm+- 5%. 20mm and above+ -3%. Rolling Margin is calculated as under :- Total Weight of Bars (Dia wise ) / Total Running Metre of Bars = Actual Sectional Weight of bars. Compare sectional weight with Standard IS Weight. Weight as per IS Standard.= Dia X Dia / 162. ----
16mm dia weight for running feet
Rolling Margin is the deviation of actual unit weight to that of Standard unit weight as per IS Standards. Rolling Margin is calculated as : Sectional weight = Weight of Steel Bars dia wise / length of the bars. As per IS Standards unit weight of the Bars is calculated as dia x dia / 162 Rolling Margin is deviation of actual sectional weight to that of IS Standard unit weight. Standard Rolling Margin for different dia reinforcement bars used for construction purposes: 8mm to 10mm +- 7% 12mm to 16mm +- 5% 20mm & Above +- 3%
0.39 kg/metre
[2.67x(dia x dia)]/8
to calculate the weight of diffrent dia bars is d2/162 D=dia of bar , and multiply into 2 times then divide it by 162
.4017
steel pipe 200mm per meter kg wait
1.58 kg
L/162*d2
6.314 kg/m